Current File : /var/www/html/bbw/farmaci/wordpress/wp-content/plugins/wordpress-seo/inc/wpseo-functions.php
<?php
/**
* @package WPSEO
* @subpackage Internals
*/
if ( ! defined( 'WPSEO_VERSION' ) ) {
header( 'Status: 403 Forbidden' );
header( 'HTTP/1.1 403 Forbidden' );
exit();
}
if ( ! function_exists( 'initialize_wpseo_front' ) ) {
/**
* Wraps frontend class.
*/
function initialize_wpseo_front() {
WPSEO_Frontend::get_instance();
}
}
if ( ! function_exists( 'yoast_breadcrumb' ) ) {
/**
* Template tag for breadcrumbs.
*
* @todo [JRF => Yoast/whomever] We could probably get rid of the 'breadcrumbs-enable' option key
* as the file is now only loaded when the template tag is encountered anyway.
* Only issue with that would be the removal of the bbPress crumb from within wpseo_frontend_init()
* in wpseo.php which is also based on this setting.
* Whether or not to show the bctitle field within meta boxes is also based on this setting, but
* showing these when someone hasn't implemented the template tag shouldn't really give cause for concern.
* Other than that, leaving the setting is an easy way to enable/disable the bc without having to
* edit the template files again, but having to manually enable when you've added the template tag
* in your theme is kind of double, so I'm undecided about what to do.
* I guess I'm leaning towards removing the option key.
*
* @param string $before What to show before the breadcrumb.
* @param string $after What to show after the breadcrumb.
* @param bool $display Whether to display the breadcrumb (true) or return it (false).
*
* @return string
*/
function yoast_breadcrumb( $before = '', $after = '', $display = true ) {
$options = get_option( 'wpseo_internallinks' );
if ( $options['breadcrumbs-enable'] === true ) {
return WPSEO_Breadcrumbs::breadcrumb( $before, $after, $display );
}
}
}
/**
* Add the bulk edit capability to the proper default roles.
*/
function wpseo_add_capabilities() {
$roles = array(
'administrator',
'editor',
);
$roles = apply_filters( 'wpseo_bulk_edit_roles', $roles );
foreach ( $roles as $role ) {
$r = get_role( $role );
if ( $r ) {
$r->add_cap( 'wpseo_bulk_edit' );
}
}
}
/**
* Remove the bulk edit capability from the proper default roles.
*
* Contributor is still removed for legacy reasons.
*/
function wpseo_remove_capabilities() {
$roles = array(
'administrator',
'editor',
'author',
'contributor',
);
$roles = apply_filters( 'wpseo_bulk_edit_roles', $roles );
foreach ( $roles as $role ) {
$r = get_role( $role );
if ( $r ) {
$r->remove_cap( 'wpseo_bulk_edit' );
}
}
}
/**
* Replace `%%variable_placeholders%%` with their real value based on the current requested page/post/cpt
*
* @param string $string the string to replace the variables in.
* @param object $args the object some of the replacement values might come from, could be a post, taxonomy or term.
* @param array $omit variables that should not be replaced by this function.
*
* @return string
*/
function wpseo_replace_vars( $string, $args, $omit = array() ) {
$replacer = new WPSEO_Replace_Vars;
return $replacer->replace( $string, $args, $omit );
}
/**
* Register a new variable replacement
*
* This function is for use by other plugins/themes to easily add their own additional variables to replace.
* This function should be called from a function on the 'wpseo_register_extra_replacements' action hook.
* The use of this function is preferred over the older 'wpseo_replacements' filter as a way to add new replacements.
* The 'wpseo_replacements' filter should still be used to adjust standard WPSEO replacement values.
* The function can not be used to replace standard WPSEO replacement value functions and will thrown a warning
* if you accidently try.
* To avoid conflicts with variables registered by WPSEO and other themes/plugins, try and make the
* name of your variable unique. Variable names also can not start with "%%cf_" or "%%ct_" as these are reserved
* for the standard WPSEO variable variables 'cf_<custom-field-name>', 'ct_<custom-tax-name>' and
* 'ct_desc_<custom-tax-name>'.
* The replacement function will be passed the undelimited name (i.e. stripped of the %%) of the variable
* to replace in case you need it.
*
* Example code:
* <code>
* <?php
* function retrieve_var1_replacement( $var1 ) {
* return 'your replacement value';
* }
*
* function register_my_plugin_extra_replacements() {
* wpseo_register_var_replacement( '%%myvar1%%', 'retrieve_var1_replacement', 'advanced', 'this is a help text for myvar1' );
* wpseo_register_var_replacement( 'myvar2', array( 'class', 'method_name' ), 'basic', 'this is a help text for myvar2' );
* }
* add_action( 'wpseo_register_extra_replacements', 'register_my_plugin_extra_replacements' );
* ?>
* </code>
*
* @since 1.5.4
*
* @param string $var The name of the variable to replace, i.e. '%%var%%'
* - the surrounding %% are optional, name can only contain [A-Za-z0-9_-]
* @param mixed $replace_function Function or method to call to retrieve the replacement value for the variable
* Uses the same format as add_filter/add_action function parameter and
* should *return* the replacement value. DON'T echo it!
* @param string $type Type of variable: 'basic' or 'advanced', defaults to 'advanced'
* @param string $help_text Help text to be added to the help tab for this variable
*
* @return bool Whether the replacement function was succesfully registered
*/
function wpseo_register_var_replacement( $var, $replace_function, $type = 'advanced', $help_text = '' ) {
return WPSEO_Replace_Vars::register_replacement( $var, $replace_function, $type, $help_text );
}
/**
* Redirect /sitemap.xml to /sitemap_index.xml
*/
function wpseo_xml_redirect_sitemap() {
$current_url = ( isset( $_SERVER['HTTPS'] ) && $_SERVER['HTTPS'] == 'on' ) ? 'https://' : 'http://';
$current_url .= sanitize_text_field( $_SERVER['SERVER_NAME'] ) . sanitize_text_field( $_SERVER['REQUEST_URI'] );
// must be 'sitemap.xml' and must be 404
if ( home_url( '/sitemap.xml' ) == $current_url && $GLOBALS['wp_query']->is_404 ) {
wp_redirect( home_url( '/sitemap_index.xml' ), 301 );
exit;
}
}
/**
* Create base URL for the sitemaps and applies filters
*
* @since 1.5.7
*
* @param string $page page to append to the base URL
*
* @return string base URL (incl page) for the sitemaps
*/
function wpseo_xml_sitemaps_base_url( $page ) {
$base = $GLOBALS['wp_rewrite']->using_index_permalinks() ? 'index.php/' : '/';
/**
* Filter: 'wpseo_sitemaps_base_url' - Allow developer to change the base URL of the sitemaps
*
* @api string $base The string that should be added to home_url() to make the full base URL.
*/
$base = apply_filters( 'wpseo_sitemaps_base_url', $base );
return home_url( $base . $page );
}
/**
* Initialize sitemaps. Add sitemap & XSL rewrite rules and query vars
*/
function wpseo_xml_sitemaps_init() {
$options = get_option( 'wpseo_xml' );
if ( $options['enablexmlsitemap'] !== true ) {
return;
}
// redirects sitemap.xml to sitemap_index.xml
add_action( 'template_redirect', 'wpseo_xml_redirect_sitemap', 0 );
if ( ! is_object( $GLOBALS['wp'] ) ) {
return;
}
$GLOBALS['wp']->add_query_var( 'sitemap' );
$GLOBALS['wp']->add_query_var( 'sitemap_n' );
$GLOBALS['wp']->add_query_var( 'xsl' );
add_rewrite_rule( 'sitemap_index\.xml$', 'index.php?sitemap=1', 'top' );
add_rewrite_rule( '([^/]+?)-sitemap([0-9]+)?\.xml$', 'index.php?sitemap=$matches[1]&sitemap_n=$matches[2]', 'top' );
add_rewrite_rule( '([a-z]+)?-?sitemap\.xsl$', 'index.php?xsl=$matches[1]', 'top' );
}
add_action( 'init', 'wpseo_xml_sitemaps_init', 1 );
/**
* Notify search engines of the updated sitemap.
*
* @param string|null $sitemapurl
*/
function wpseo_ping_search_engines( $sitemapurl = null ) {
// Don't ping if blog is not public
if ( '0' == get_option( 'blog_public' ) ) {
return;
}
if ( $sitemapurl == null ) {
$sitemapurl = urlencode( wpseo_xml_sitemaps_base_url( 'sitemap_index.xml' ) );
}
// Ping Google and Bing
wp_remote_get( 'http://www.google.com/webmasters/tools/ping?sitemap=' . $sitemapurl, array( 'blocking' => false ) );
wp_remote_get( 'http://www.bing.com/ping?sitemap=' . $sitemapurl, array( 'blocking' => false ) );
}
add_action( 'wpseo_ping_search_engines', 'wpseo_ping_search_engines' );
/**
* Handles ajax request for tracking activation.
*/
function wpseo_store_tracking_response() {
if ( ! wp_verify_nonce( $_POST['nonce'], 'wpseo_activate_tracking' ) ) {
die();
}
$options = get_option( 'wpseo' );
$options['tracking_popup_done'] = true;
if ( $_POST['allow_tracking'] == 'yes' ) {
$options['yoast_tracking'] = true;
}
else {
$options['yoast_tracking'] = false;
}
update_option( 'wpseo', $options );
}
add_action( 'wp_ajax_wpseo_allow_tracking', 'wpseo_store_tracking_response' );
/**
* WPML plugin support: Set titles for custom types / taxonomies as translatable.
* It adds new keys to a wpml-config.xml file for a custom post type title, metadesc, title-ptarchive and metadesc-ptarchive fields translation.
* Documentation: http://wpml.org/documentation/support/language-configuration-files/
*
* @global $sitepress
*
* @param array $config
*
* @return array
*/
function wpseo_wpml_config( $config ) {
global $sitepress;
if ( ( is_array( $config ) && isset( $config['wpml-config']['admin-texts']['key'] ) ) && ( is_array( $config['wpml-config']['admin-texts']['key'] ) && $config['wpml-config']['admin-texts']['key'] !== array() ) ) {
$admin_texts = $config['wpml-config']['admin-texts']['key'];
foreach ( $admin_texts as $k => $val ) {
if ( $val['attr']['name'] === 'wpseo_titles' ) {
$translate_cp = array_keys( $sitepress->get_translatable_documents() );
if ( is_array( $translate_cp ) && $translate_cp !== array() ) {
foreach ( $translate_cp as $post_type ) {
$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metakey-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-ptarchive-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-ptarchive-' . $post_type;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metakey-ptarchive-' . $post_type;
$translate_tax = $sitepress->get_translatable_taxonomies( false, $post_type );
if ( is_array( $translate_tax ) && $translate_tax !== array() ) {
foreach ( $translate_tax as $taxonomy ) {
$admin_texts[ $k ]['key'][]['attr']['name'] = 'title-tax-' . $taxonomy;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metadesc-tax-' . $taxonomy;
$admin_texts[ $k ]['key'][]['attr']['name'] = 'metakey-tax-' . $taxonomy;
}
}
}
}
break;
}
}
$config['wpml-config']['admin-texts']['key'] = $admin_texts;
}
return $config;
}
add_filter( 'icl_wpml_config_array', 'wpseo_wpml_config' );
/**
* WordPress SEO breadcrumb shortcode
* [wpseo_breadcrumb]
*
* @return string
*/
function wpseo_shortcode_yoast_breadcrumb() {
return yoast_breadcrumb( '', '', false );
}
add_shortcode( 'wpseo_breadcrumb', 'wpseo_shortcode_yoast_breadcrumb' );
/**
* This invalidates our XML Sitemaps cache.
*
* @param string $type
*/
function wpseo_invalidate_sitemap_cache( $type ) {
// Always delete the main index sitemaps cache, as that's always invalidated by any other change
delete_transient( 'wpseo_sitemap_cache_1' );
delete_transient( 'wpseo_sitemap_cache_' . $type );
WPSEO_Utils::clear_sitemap_cache( array( $type ) );
}
add_action( 'deleted_term_relationships', 'wpseo_invalidate_sitemap_cache' );
/**
* Invalidate XML sitemap cache for taxonomy / term actions
*
* @param unsigned $unused
* @param string $type
*/
function wpseo_invalidate_sitemap_cache_terms( $unused, $type ) {
wpseo_invalidate_sitemap_cache( $type );
}
add_action( 'edited_terms', 'wpseo_invalidate_sitemap_cache_terms', 10, 2 );
add_action( 'clean_term_cache', 'wpseo_invalidate_sitemap_cache_terms', 10, 2 );
add_action( 'clean_object_term_cache', 'wpseo_invalidate_sitemap_cache_terms', 10, 2 );
/**
* Invalidate the XML sitemap cache for a post type when publishing or updating a post
*
* @param int $post_id
*/
function wpseo_invalidate_sitemap_cache_on_save_post( $post_id ) {
// If this is just a revision, don't invalidate the sitemap cache yet.
if ( wp_is_post_revision( $post_id ) ) {
return;
}
wpseo_invalidate_sitemap_cache( get_post_type( $post_id ) );
}
add_action( 'save_post', 'wpseo_invalidate_sitemap_cache_on_save_post' );
/**
* Emulate PHP native ctype_digit() function for when the ctype extension would be disabled *sigh*
* Only emulates the behaviour for when the input is a string, does not handle integer input as ascii value
*
* @param string $string
*
* @return bool
*/
if ( ! extension_loaded( 'ctype' ) || ! function_exists( 'ctype_digit' ) ) {
/**
* @param string $string
*
* @return bool
*/
function ctype_digit( $string ) {
$return = false;
if ( ( is_string( $string ) && $string !== '' ) && preg_match( '`^\d+$`', $string ) === 1 ) {
$return = true;
}
return $return;
}
}
/********************** DEPRECATED FUNCTIONS **********************/
/**
* Get the value from the post custom values
*
* @deprecated 1.5.0
* @deprecated use WPSEO_Meta::get_value()
* @see WPSEO_Meta::get_value()
*
* @param string $val internal name of the value to get
* @param int $postid post ID of the post to get the value for
*
* @return string
*/
function wpseo_get_value( $val, $postid = 0 ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.0', 'WPSEO_Meta::get_value()' );
return WPSEO_Meta::get_value( $val, $postid );
}
/**
* Save a custom meta value
*
* @deprecated 1.5.0
* @deprecated use WPSEO_Meta::set_value() or just use update_post_meta()
* @see WPSEO_Meta::set_value()
*
* @param string $meta_key the meta to change
* @param mixed $meta_value the value to set the meta to
* @param int $post_id the ID of the post to change the meta for.
*
* @return bool whether the value was changed
*/
function wpseo_set_value( $meta_key, $meta_value, $post_id ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.0', 'WPSEO_Meta::set_value()' );
return WPSEO_Meta::set_value( $meta_key, $meta_value, $post_id );
}
/**
* Retrieve an array of all the options the plugin uses. It can't use only one due to limitations of the options API.
*
* @deprecated 1.5.0
* @deprecated use WPSEO_Options::get_option_names()
* @see WPSEO_Options::get_option_names()
*
* @return array of options.
*/
function get_wpseo_options_arr() {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.0', 'WPSEO_Options::get_option_names()' );
return WPSEO_Options::get_option_names();
}
/**
* Retrieve all the options for the SEO plugin in one go.
*
* @deprecated 1.5.0
* @deprecated use WPSEO_Options::get_all()
* @see WPSEO_Options::get_all()
*
* @return array of options
*/
function get_wpseo_options() {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.0', 'WPSEO_Options::get_all()' );
return WPSEO_Options::get_all();
}
/**
* Used for imports, both in dashboard and import settings pages, this functions either copies
* $old_metakey into $new_metakey or just plain replaces $old_metakey with $new_metakey
*
* @deprecated 1.5.0
* @deprecated use WPSEO_Meta::replace_meta()
* @see WPSEO_Meta::replace_meta()
*
* @param string $old_metakey The old name of the meta value.
* @param string $new_metakey The new name of the meta value, usually the WP SEO name.
* @param bool $replace Whether to replace or to copy the values.
*/
function replace_meta( $old_metakey, $new_metakey, $replace = false ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.0', 'WPSEO_Meta::replace_meta()' );
WPSEO_Meta::replace_meta( $old_metakey, $new_metakey, $replace );
}
/**
* Retrieve a taxonomy term's meta value.
*
* @deprecated 1.5.0
* @deprecated use WPSEO_Taxonomy_Meta::get_term_meta()
* @see WPSEO_Taxonomy_Meta::get_term_meta()
*
* @param string|object $term term to get the meta value for
* @param string $taxonomy name of the taxonomy to which the term is attached
* @param string $meta meta value to get
*
* @return bool|mixed value when the meta exists, false when it does not
*/
function wpseo_get_term_meta( $term, $taxonomy, $meta ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.0', 'WPSEO_Taxonomy_Meta::get_term_meta()' );
return WPSEO_Taxonomy_Meta::get_term_meta( $term, $taxonomy, $meta );
}
/**
* Throw a notice about an invalid custom taxonomy used
*
* @since 1.4.14
* @deprecated 1.5.4 (removed)
*/
function wpseo_invalid_custom_taxonomy() {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.4' );
}
/**
* Retrieve a post's terms, comma delimited.
*
* @deprecated 1.5.4
* @deprecated use WPSEO_Replace_Vars::get_terms()
* @see WPSEO_Replace_Vars::get_terms()
*
* @param int $id ID of the post to get the terms for.
* @param string $taxonomy The taxonomy to get the terms for this post from.
* @param bool $return_single If true, return the first term.
*
* @return string either a single term or a comma delimited string of terms.
*/
function wpseo_get_terms( $id, $taxonomy, $return_single = false ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.4', 'WPSEO_Replace_Vars::get_terms()' );
$replacer = new WPSEO_Replace_Vars;
return $replacer->get_terms( $id, $taxonomy, $return_single );
}
/**
* Generate an HTML sitemap
*
* @deprecated 1.5.5.4
* @deprecated use plugin WordPress SEO Premium
* @see WordPress SEO Premium
*
* @param array $atts The attributes passed to the shortcode.
*
* @return string
*/
function wpseo_sitemap_handler( $atts ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.5.5.4', 'Functionality has been discontinued after being in beta, it\'ll be available in the WordPress SEO Premium plugin soon.' );
return '';
}
add_shortcode( 'wpseo_sitemap', 'wpseo_sitemap_handler' );
/**
* Strip out the shortcodes with a filthy regex, because people don't properly register their shortcodes.
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::strip_shortcode()
* @see WPSEO_Utils::strip_shortcode()
*
* @param string $text input string that might contain shortcodes
*
* @return string $text string without shortcodes
*/
function wpseo_strip_shortcode( $text ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::strip_shortcode()' );
return WPSEO_Utils::strip_shortcode( $text );
}
/**
* Do simple reliable math calculations without the risk of wrong results
* @see http://floating-point-gui.de/
* @see the big red warning on http://php.net/language.types.float.php
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::calc()
* @see WPSEO_Utils::calc()
*
* In the rare case that the bcmath extension would not be loaded, it will return the normal calculation results
*
* @since 1.5.0
*
* @param mixed $number1 Scalar (string/int/float/bool)
* @param string $action Calculation action to execute.
* @param mixed $number2 Scalar (string/int/float/bool)
* @param bool $round Whether or not to round the result. Defaults to false.
* @param int $decimals Decimals for rounding operation. Defaults to 0.
* @param int $precision Calculation precision. Defaults to 10.
*
* @return mixed Calculation Result or false if either or the numbers isn't scalar or
* an invalid operation was passed
*/
function wpseo_calc( $number1, $action, $number2, $round = false, $decimals = 0, $precision = 10 ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::calc()' );
return WPSEO_Utils::calc( $number1, $action, $number2, $round, $decimals, $precision );
}
/**
* Check if the web server is running on Apache
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::is_apache()
* @see WPSEO_Utils::is_apache()
*
* @return bool
*/
function wpseo_is_apache() {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::is_apache()' );
return WPSEO_Utils::is_apache();
}
/**
* Check if the web service is running on Nginx
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::is_nginx()
* @see WPSEO_Utils::is_nginx()
*
* @return bool
*/
function wpseo_is_nginx() {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::is_nginx()' );
return WPSEO_Utils::is_nginx();
}
/**
* List all the available user roles
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::get_roles()
* @see WPSEO_Utils::get_roles()
*
* @return array $roles
*/
function wpseo_get_roles() {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::get_roles()' );
return WPSEO_Utils::get_roles();
}
/**
* Check whether a url is relative
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::is_url_relative()
* @see WPSEO_Utils::is_url_relative()
*
* @param string $url
*
* @return bool
*/
function wpseo_is_url_relative( $url ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::is_url_relative()' );
return WPSEO_Utils::is_url_relative( $url );
}
/**
* Standardize whitespace in a string
*
* @deprecated 1.6.1
* @deprecated use WPSEO_Utils::standardize_whitespace()
* @see WPSEO_Utils::standardize_whitespace()
*
* @since 1.6.0
*
* @param string $string
*
* @return string
*/
function wpseo_standardize_whitespace( $string ) {
_deprecated_function( __FUNCTION__, 'WPSEO 1.6.1', 'WPSEO_Utils::standardize_whitespace()' );
return WPSEO_Utils::standardize_whitespace( $string );
}
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